by A F W Schimper | .
by C A Thorold | .
by A.Hallam | .
by J Hutchinson | .
by Joseph Schacht | .
by Charles Bell | .
by Richard F. Gombrich | .
by R.Kumar | .
by P.J .Wheatley | .
by G.S.G. Phillips | .
by C.R.N. Strouts | H.N.Wilson R.T. Parry-Jones.
by P.E. Hodgson | Ralph E.
by G. Walker | .
by Dennis Chitty | .
by P. T. Haskell | .
by G. R. Clarke | .
by J.Miege | .
by J. Hutchinson | .
by Peter S . Savill | .
by Genera Plantarum | .
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